In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.
総合評価: CVE-2020-8622 は中リスク（61/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 5.54%、92 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +2.92% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.63% | 5.54% | +2.92% |
| 2 | 2026-03-03 | 2.40% | 2.63% | +0.23% |
| 3 | 2026-01-31 | — | 2.40% | — |
EPSS の全履歴 （全 22 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2020-8622: 1 source package rows (bind); 72 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 12, open 60. | https://security.alpinelinux.org/vuln/CVE-2020-8622 |
debian
|
not yet assigned | CVE-2020-8622 not yet assigned priority: Debian including 1 source packages (bind9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-8622 |
gentoo
|
normal | CVE-2020-8622: 1 GLSA(s) (202008-19), 1 atom(s) (net-dns/bind); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-8622 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-8622 |
suse
|
high | CVE-2020-8622 severity important: SUSE including 532 source package names (0.1.0:sysuser-shadow-2.0-4.2.8, 0.1.75:sysuser-shadow-2.0-4.2.8, …), 1048 product×package rows across 221 product lines (Container bci/bci-init, Container bci/dotnet-aspnet, … (221 product lines)): Fixed 857, Known Affected 157, Known Not Affected 34. | https://www.suse.com/security/cve/CVE-2020-8622/ |
ubuntu
|
medium | CVE-2020-8622 medium priority: Ubuntu including 1 source packages (bind9), 5 status rows across 5 suites (bionic, focal, trusty, upstream, xenial): released 4, needs-triage 1. | https://ubuntu.com/security/CVE-2020-8622 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| isc | bind | >= 9.0.0, <= 9.11.21 | cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
| isc | bind | >= 9.12.0, <= 9.16.5 | cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
| isc | bind | >= 9.17.0, <= 9.17.3 | cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
| isc | bind | 9.9.3 | cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:* |
| isc | bind | 9.11.21 | cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:* |
| fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 20.04 | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
| netapp | steelstore_cloud_integrated_storage | — | cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| opensuse | leap | 15.2 | cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* |
| synology | dns_server | < 2.2.2-5028 | cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:* |
| oracle | communications_diameter_signaling_router | >= 8.0.0, <= 8.5.0 | cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* |